Ball-bearing.



H, BARTHEL. BALL BEARING.

APPLICATION FILED JULY 11, 19101 Patented Apr. 18, 1911.

v the HERMANN BARTHEL, OF .SCHWEINIFURT, GERMANY.

BALL-BEARING.

Specification of Letters Patent. Patented Apr. 18, 19110 Application filed July 11, 1910. Serial No. 571,452.

To all whom it mag concern:

Be it known that I, HERMANN BARTIIEL, a subject of the King of Prussia, residing at No. 7 Petersgasse, Schweinfurt, Germany, haveinvented new and useful Improvements in Ball-Bearings, of which the following is a specification.

My invention relates to ball-bearings, and a primary object is to provide therefor an improved ball-cage consisting of two rings, of which the one embraces the other by means of clamp-like tongues or lugs.

Guide cages consisting of half rings and held. together by rivets, screws or clamps are well-known in themselves, and my invention relates particularlyto the special construction of such rings, whereby various important advantages are obtained.

One illustrative embodiment of my invention is represented by way of example in accompanying drawing. wherein Figure l is a vertical section, and Fig. 2 a side elevation of a bearing comprising my improved cage; Fig. 3 is a perspective view showing part of one of the rings forming the cage, and Fig. 4 a like view showing the other ring before the two rings have been secured together.

Referring to the drawing, the one part of my cage consists of a ring f having a U- shaped section, preferably pressed out of sheet metal, and having apertures 23 for receiving and separating the balls The bottom of ring f is preferably located in the central plane of the hearing. I stamp the second part 9 of the cage out of sheet metal approximately in the shape shown in Fig. 4'. and then press it to form 7 represented in section in Fig. l. llhelugs It are bent inwardly, whereas the lugs f/ are bent over the side of ring f, so that the two partsf, (Z form a cage. Particularly in the case of bearings having groove-shaped ball-races the lugs g may be bent, as de scribed, after the balls I have been inserted in the bearing.

Some of the advantages of my improved cage are as follows :-It can be made cheaply.

a. ring out of sheet metal on a large scale and has a small weight; the bottom of the one ring f is located in the central plane through the balls, in which the cage is loaded by the balls when the bearing is subjected to great stresses, and the pressure of the balls is consequently taken up by the full section of this bottom, whereby great durability of the same is obtained in spite of the small weight of the cage; the cage consists of only two parts without additional rivets, screws, clamps and the like; it can. readily be assembled after the bearing has been filled with balls; the lugs y engage over the ring f at the partof the cage at a greatest radial distance from the center of the hearing, so that these lugs can be made broad and the spaces between the balls nevertheless small. whereby, on the one hand,greater durability of the lugs or of the cage is possible, and, on the other hand. it is possible to accommodate such a number of balls that the hearing has a great carrying capacity.

I claim 1. A ball bearing ofthe cl'iaracter described, including a ring U-shapcd in section, a second ring having lateral lugs engaging the first rcferred to ring and inwardly bent lugs forming abutments for the first referred to ring, said first referred to ring being pressed against said inwardly bent lugs, and concentric members between which are received said. ring members.

2. A ball bearing of the character described, inch'iding a ring U-shaped in section, a second ring having lateral lugs engaging the first referred to ring and inwardly bent lugs forming abutments for the first referred to ring, said first referred to ring being pressed against inwardly bent lugs by said lateral lugs, and concentric members between which are received said ring .said concentric members having their opcircumferenccs recessed posed surfaces or to receive and conform to the bearing balls. 3. In a ball-bearing. a cage comprising a. ring of U-shapcd section, and a second ring having lugs engaging a side of the former ring I and inwardly-bent lugs abutting my name this twenty-seventh day of May against the former ring, said former ring 1910, in the presence of two subscribing Witbeing pressed against said inwardly bent lugs nesses.

by the lateral lugs, the bottom of the former HERMANN BAR'IHEL 5 ring being located in the central plane of the Witnesses: I

bearing, substantially as shown. HENRY HASPER,

In Witness whereof I have hereunto signed WOLDEMAR HAUPT. 

